linux-kernel - Re: [PATCH v2 3/3] regmap: Allow setting IRQ domain name suffix

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Message-ID: <128893ca-121d-45c6-8b95-e8e4456c9c07@gmail.com>
Date: Tue, 13 Aug 2024 12:11:10 +0300
From: Matti Vaittinen <mazziesaccount@...il.com>
To: Andy Shevchenko <andy@...ck.fi.intel.com>
Cc: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>,
 Mark Brown <broonie@...nel.org>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
 "Rafael J. Wysocki" <rafael@...nel.org>, Thomas Gleixner
 <tglx@...utronix.de>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 3/3] regmap: Allow setting IRQ domain name suffix

On 8/12/24 22:05, Andy Shevchenko wrote:
> On Thu, Aug 08, 2024 at 03:36:28PM +0300, Matti Vaittinen wrote:
>> When multiple IRQ domains are created from the same device-tree node they
>> will get the same name based on the device-tree path. This will cause a
>> naming collision in debugFS when IRQ domain specific entries are created.
>>
>> The regmap-IRQ creates per instance IRQ domains. This will lead to a
>> domain name conflict when a device which provides more than one
>> interrupt line uses the regmap-IRQ.
>>
>> Add support for specifying an IRQ domain name suffix when creating a
>> regmap-IRQ controller.
> 
> ...
> 
>> +static int regmap_irq_create_domain(struct fwnode_handle *fwnode, int irq_base,
>> +				    const struct regmap_irq_chip *chip,
>> +				    struct regmap_irq_chip_data *d)
>> +{
>> +	struct irq_domain_info info = {
>> +		.fwnode = fwnode,
>> +		.size = chip->num_irqs,
>> +		.hwirq_max = chip->num_irqs,
>> +		.virq_base = irq_base,
>> +		.ops = &regmap_domain_ops,
>> +		.host_data = d,
>> +		.name_suffix = chip->domain_suffix,
>> +	};
>> +
>> +	d->domain = irq_domain_instantiate(&info);
>> +	if (IS_ERR(d->domain)) {
>> +		dev_err(d->map->dev, "Failed to create IRQ domain\n");
>> +		return PTR_ERR(d->domain);
>> +	}
>> +
>> +	return 0;
>> +}
>> +
>> +
> 
> One blank line is enough?

Sure. Thanks Andy!

Yours,
	--Matti

> 
>>   /**
> 

-- 
Matti Vaittinen
Linux kernel developer at ROHM Semiconductors
Oulu Finland

~~ When things go utterly wrong vim users can always type :help! ~~